tail
tail
verb
To follow and observe someone or something secretly and very closely.
"Police tailed the car for miles."
noun
The flexible appendage at the rear of an animal's body, used for balance or communication.
"The squirrel flicked its bushy tail."
Thesaurus
Synonyms: tail end, shadow, shadower, bob, dock, trail, track, chase after, chase, dog, go after, give chase
Antonyms: head